JP2514737B2 - Adhesive coating device for wood panel manufacturing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an adhesive for adhering a face material to a frame body in which core materials are assembled in a lattice when manufacturing a wood panel for prefabricated houses. The present invention relates to an adhesive application device for manufacturing a wood panel for applying the.

[Prior Art] Generally, in a wood-based prefabricated house or the like, a means for constructing walls, floors, roofs, or the like by so-called wood panels formed by plywood or the like is used.

The wooden panel 1 applied to the construction of such a prefabricated house has a structure as shown in FIG. 6, for example. That is, a frame 3 (workpiece) is composed of core members 2, 2 ... Assembled in the shape of a rectangular frame, and reinforcing core members 2, 2 assembled in the shape of a lattice inside the core member 2. 2 is filled with a heat insulating material 4 such as glass wool and surrounded by the frame 3
The surface materials 5 and 5 made of plywood are attached to both front and back surfaces of the above.

Conventionally, as a method of applying an adhesive agent for attaching the face material 5 to the frame body 3, for example, a hopper for supplying the adhesive agent and an adhesive agent can be attached to the entire outer periphery by the hopper and the frame body can be applied. A frame 3 is provided between the adhesive roller and the support roller by using an adhesive application device including an adhesive roller for applying the adhesive to the adhesive roller 3 and a support roller for pressing the frame 3 from below the adhesive roller. There is a method in which the frame body 3 is pushed through between the pressure-sensitive adhesive roller and the support roller and the adhesive is applied to the surface of the frame body 3 by sandwiching and rotating the adhesive roller.

[Problems to be Solved by the Invention] By the way, in the adhesive application method using the conventional adhesive application device, an adhesive is applied to the entire outer circumference of an adhesive roller longer than the width of the frame, and the adhesive roller is provided with a frame. By pressing the body and rotating the adhesive roller, the adhesive is applied to the surface of the frame body, so the amount of adhesive applied to the frame body can be adjusted or a fixed amount of adhesive can be applied each time. It was difficult to do. Therefore, the adhesive may be applied too much, which causes a cost increase.

Then, in the adhesive application method using the adhesive application device described above, since the adhesive is applied to the entire surface of the core material,
The adhesive will also be applied to the side edges of the core material,
The adhesive applied to the side edges often dripped from the side edges. For this reason, the side surface of the frame body is soiled, and further hangs down to soil the support roller and the work table.

Further, in the adhesive application method using the conventional adhesive application device, the frame body is forcedly sandwiched between the adhesive roller and the support roller, which may cause deformation of the frame body. Yield could be poor.

The present invention has been made in view of the above circumstances,
A predetermined amount of adhesive can be applied to the surface of the core material of the frame, and the equipment such as the workbench is not soiled with the adhesive,
An object of the present invention is to provide an adhesive application device in a wood panel manufacturing process that does not damage the frame.

[Means for Solving the Problem] In order to achieve such an object, the adhesive applying device for a wood panel manufacturing process of the present invention is arranged on the upper surface of a frame body in which core materials are assembled in a grid pattern in the longitudinal direction of the core materials. An adhesive application device for applying an adhesive using an adhesive application nozzle that is movable along a horizontal application part for applying the adhesive to a core material in a horizontal direction of the frame and a vertical direction of the frame. It is composed of a vertical application section for applying adhesive to the core material, and each of these horizontal application section and vertical application section is a work table for applying the adhesive while moving the frame body. And a gate-shaped arm that is movable on the upper side of the work feeder with its both ends guided by tracks provided on both sides of the work feeder along the traveling direction of the work feeder, and attached to the gate-shaped arm. The core that forms the frame body A plurality of nozzles for applying adhesive to the material, a lever type limit switch mounted at a position in front of the nozzle with respect to the moving direction of the arm and for confirming the presence or absence of the core material of the frame body, and this lever type limit switch An adhesive applying device for manufacturing a wood panel, comprising: an adhesive supplying means for sending an adhesive to the nozzle based on a detection signal from the adhesive.

[Operation] According to the above configuration, when the adhesive application nozzle moves forward, the limit switch, which is the core material detection means provided in front of this nozzle, detects the core material, and the predetermined amount is supplied from the adhesive supply means. The adhesive is supplied to a nozzle arranged behind the core detecting means, and a certain amount of the adhesive is applied from the nozzle to the core.

At this time, the adhesive is applied from the nozzle to the core material so that the adhesive is not applied to the entire side surface of the core material, and the adhesive is not applied to the side edges of the core material. The adhesive can be applied only to the central portion along the direction.

Next, when the core material detecting means has passed the end of the core material, the absence of the core material is detected, and the supply of the adhesive from the adhesive supply means is stopped. Therefore, if the adhesive is applied too much, the adhesive may drip, the adhesive may be ejected from the nozzle in the absence of the core material, or the adhesive may drip from the side edges of the core material. The adhesive can be applied to the frame body without being soiled.

Further, since the adhesive is applied to the frame on the work feeder from the nozzle, a strong force is not applied to the frame, so that the adhesive can be applied without damaging the frame.

[Examples] Examples of the apparatus of the present invention will be described below. First, a preferred example of the adhesive application device of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the adhesive application device 10 includes a lateral application section 10 for applying an adhesive to the lateral core material 2 a of the frame body 3.
and a vertical application portion 10b for applying an adhesive to the vertical core material 2b of the frame body 3.

The horizontal application section 10a and the vertical application section 10b have substantially the same configuration, and the work feeder 1 serves as a work table when the frame 3 is placed and moved and the adhesive is applied.
Gates movable along the upper sides of the work feeders 11 by guiding both ends of the work feeders 11 and 11 on both sides of the work feeders 11 and 11 along the traveling directions of the work feeders. The shaped arms 13, 13 and a plurality of nozzles 14, 14 for applying an adhesive to the core materials 2a, 2b arranged on the gate-shaped arms 13, 13 and constituting the frame 3 and these nozzles 14, 14 ,. Installed in front of the core body 2 for confirming the presence or absence of the core materials 2a, 2b of the frame body 3, and the core material detection means 15, 15 ...
Is substantially composed of an adhesive supply means 20 (an outline is shown in FIG. 4) for supplying an adhesive to the nozzles 14, 14 ...

Then, in the vertical application section 10b, the horizontal application section 10a
Frame body 3 in which adhesive is applied to the lateral core material 2a in
Is extruded from the work feeder 11 of the horizontal application unit 10a onto the work feeder 11 of the vertical application unit 10b, and the adhesive is applied to the vertical core material 2b with the frame body 3 being substantially unchanged. In order to do so, the traveling direction of the work feeder 11 of the vertical coating unit 10b is made perpendicular to the traveling direction of the work feeder 11 of the horizontal coating unit 10a, and the upper surface of the work feeder 11 of the vertical coating unit 10b is The work feeder 11 of the vertical coating unit 10b is installed at a position lower than the upper surface of the work feeder 11 of the horizontal coating unit 10a and adjacent to the tip of the work feeder 11 of the horizontal coating unit 10a.

In the work feeder 11, two rollers 11b and 11b parallel to each other are rotatably supported at both ends of an installation table 11a, and an endless belt 11c is stretched over the rollers 11b and 11b to form the roller 11b. Is rotated by a roller driving mechanism (not shown).

The configuration of the work feeder is not limited to the illustrated example.

The track 12 is provided parallel to the endless belt 11c on pedestals 12a and 12a provided along the endless belt 11c near both side edges of the work feeder 11.

The gate-shaped arm 13 has columns 13a and 13a at both ends of the track.
It is designed to be guided to 12, 12, and this pillar 13a, 1
The upper end of 3a is connected by a rod 13b. The arm drive mechanism 16 including the motor 16a, the chain 16b, and the gears 16c and 16c is guided by the track 12 to move back and forth.

Then, in the lateral application section 10a, the arm 13
Five inverted L-shaped arm members 13c are attached to the side surface of the rod body 13b, and a plate-shaped nozzle fixing member 13d is provided by connecting the tips of these arm members 13c. Five nozzles 14 are arranged on the lower surface of the nozzle fixing member 13d at predetermined intervals so as to correspond to the arrangement positions of the core members 2a of the various frame bodies 3. The nozzle 14 of the horizontal coating section 10a has the same configuration as the nozzle 14 of the vertical coating section 10b described later.

Further, in the vertical application section 10b, since the arrangement position of the core material 2b in the vertical direction changes more than the arrangement position of the core material 2a in the horizontal direction due to various frame bodies 3, the nozzle
14 is a core material 2b corresponding to a predetermined standard of various frame bodies 3 in advance.
It is movably arranged along the arm 13 so as to move to the arrangement position.

In addition, although the configuration of the movable nozzle 14 is a configuration applied only to the vertical application unit 10b in the illustrated example,
It goes without saying that it can also be applied to the lateral application section 10a.

That is, the nozzle 14 of the vertical application section 10b is adapted to change the rotation of the motor 17a into a horizontal movement by the rack and pinion mechanism 17, and the horizontal application section 10b.
A housing 17b integrally attached to the motor 17a is fixed to the tip of the motor 17a, which is attached to the nozzle fixing member 13d in substantially the same manner as a. As shown in FIG. 2 and FIG. Thus, the pinion 17d connected to the rotating shaft 17c of the motor 17a is adapted to rotate, and the pinion 17d meshes with the rack 17e having the nozzle 14 attached to one end thereof. The housing 17b is supported by holes 17f formed on the left and right side surfaces of the housing 17b, and moves left and right along the arm 13.

The nozzle 14 has a nozzle body 14a whose upper end is axially supported by a nozzle mounting portion 17g provided at the end of the rack 17e.
And the nozzle tip portion 14b for applying the adhesive of the frame body 3, and the nozzle body 14b is rotatably supported so that the nozzle 14 is rotatable, so that the height of the nozzle tip portion 14b is adjusted to the frame body. It can be adjusted to correspond to the height of 3.

Then, the adhesive supply means 20 is attached to the nozzle body 14a.
A tube 14c for supplying an adhesive from is connected to the tube.

Further, reference numeral 18 is a limit switch for confirming that the nozzle 14 is at the origin, and when determining the position of the nozzle 14, first, the left end of the rack 17e is returned to the origin A, and the rack 17e is at the origin. It is supposed to confirm that.

As shown in FIG. 2 and the like, the core material detecting means 15 includes a nozzle fixing portion 17 of a nozzle fixing member 13d or a rack 17e.
It is attached to a position in front of the nozzle 14 with respect to the traveling direction of the arm 13 of g, and includes a switch portion 15b and a lever portion 15c.
It is a lever type limit switch 15a consisting of and.

The lever portion 15c of the limit switch 15a has an upper end rotatably supported by the switch portion 15b, is biased to the right in FIG. 2, and has a lower end rotatably provided with a circular contact body 15d. It is supported.

When the arm 13 passes over the upper side of the frame body 3, the limit switch 15a is pushed up by the contact body 15d of the lever portion 15c being pushed by the frame body 3 and the tip of the lever portion 15c is leftward in FIG. The switch portion 15b is turned on by moving to, and the contact portion 15d returns to its original position after passing through the frame body 3 to be turned off.

Therefore, the limit switch 15a is connected to the adhesive supply means and supplies the adhesive when the nozzle 14 comes to the upper side of the core materials 2a and 2b, and the nozzle 14 has passed the upper side of the core materials 2a and 2b. At this time, the supply of the adhesive is stopped. As shown in FIG. 4, the adhesive supply means 20 has a nozzle for supplying the adhesive from the adhesive tank 20a through the tube 20b.
Adhesive pressure pump 20c for supplying to 14 (shown in FIG. 1)
And an air drive valve 20d provided in the middle of the tube 20b for shutting off the supply of adhesive, an air pump 20e for supplying pressure to drive the air drive valve 20d, and a limit for controlling this compressed air. It is composed of a solenoid valve 20f connected to the switch 15a.

Reference numeral 20g is a motor for driving the adhesive pressure-feeding pump 20c, reference numeral 20h is a motor for driving the air pump 20e, and reference numeral 20i is a diaphragm for adjusting the amount of the adhesive agent supplied to the nozzle 14.

Next, one embodiment of a method of applying an adhesive using the apparatus having the above-mentioned configuration will be described with reference to the drawings.

The outline of the adhesive application method in the wood panel manufacturing process of this embodiment is that a core material detecting means 15 is provided in front of the nozzle 14 and the frame 14 is placed on the work feeder 11 and then the nozzle 14 is advanced. An adhesive is supplied to the nozzle 14 on the basis of a detection signal from the core material detecting means 15, and the nozzle 14 is moved and the adhesive is applied to the core material.

In order to apply the adhesive to the frame body 3, the arm 13 of the lateral application portion 10a is moved to the left end in advance, and the lateral core material 2a of the wooden panel 1 to be manufactured among the five nozzles 14 provided.
It is set so that the adhesive is supplied only to the three nozzles 14 corresponding to the arrangement.

Next, the frame body 3 is conveyed by a work feeder (not shown) from the workbench that assembles the frame body in the previous step, and the lateral application section 10a
Placed on the work feeder 11 of this work feeder 11
When the frame 3 is moved to a predetermined position, the work feeder 11 stops. The nozzle 14 is moved forward by moving the arm 13 to the right in FIG.

Next, when the limit switch 15a which is the core material detecting means 15 comes into contact with the frame 3 and the limit switch 15a is turned on,
The electromagnetic valve 20f of the adhesive supply means 20 is opened, the pressure feed from the air pump 20e is sent to the air drive valve 20d, the air drive valve 20d is opened, and the adhesive pressure fed from the adhesive pressure feed pump 20c is discharged to the nozzle 14 Sent to. And this nozzle 14
Thus, the adhesive is applied to the core material 2a of the frame body 3.

At this time, after the limit switch 15a is turned on,
The lag time until the adhesive is discharged from the nozzle 14 corresponds to the time from the contact of the limit switch 15a with the frame 3 to the arrival of the nozzle 14 on the frame 3.
The nozzle 14 is adapted to apply the adhesive to the surface of the core 2a with a constant width along the center line, so that the adhesive hangs down from the side edge of the core 2a and the frame 3 The side surface and the adhesive applying device 10 are prevented from being soiled by the adhesive.

Next, the arm 13 reaches the end of the frame 3, the limit switch 15a moves away from the frame 3, and the limit switch 15a
When turned off, the electromagnetic valve 20f is closed, the compressed air is shut off, the air drive valve 20d is closed, and the supply of the adhesive to the nozzle 14 is shut off.

Next, the arm 13 stops at the right end of the track 12, the work feeder 11 is activated, and the frame 3 moves to the lateral application section 10a.
From the vertical direction to the coating section 10b.

The frame 3 extruded from the work feeder 11 of the lateral application section 10a is placed on a predetermined position of the work feeder 11 of the lateral application section 10b.

In the vertical application unit 10b, the positions of the three nozzles 14 are moved in advance according to the arrangement of the core material of the frame body. When the nozzle 14 is moved, as shown in FIG. 3, first, the rack 17e is moved to the leftmost side, the left end of the rack 17e is brought into contact with the limit switch 18, and the limit switch 18 is used to move the rack 17e. Confirm that the left end of the mark has returned to the origin A position.

The nozzle 14 fixed to the rack 17e determines the origin A by determining the number of rotations of the motor 17a.
Is moved to a position corresponding to the core material 2b at a predetermined distance.

Next, the core material 2b is applied in the vertical direction in the same manner as the above-mentioned horizontal application portion 10a. Then, the work feeder 11 is operated to convey the frame 3 to the next step, and the face plate 5 is attached to the frame 3. When the face materials 5 on both sides of the frame body 3 are attached, the above steps are repeated.

It should be noted that like the frame body 3a shown in FIG. 5, the reinforcing core material 2c is not extended from one end to the other end of the frame body 3 and there is a portion without the core material 2c in the middle. In the above, when the limit switch 15a reaches the portion where the core material 2c does not exist, the limit switch 15a is turned off, and the supply of the adhesive to the nozzle 14 is cut off. Then, the limit switch 15a turns the core material 2c
When it comes into contact with, the limit switch 15a is turned on and the adhesive is applied. Therefore, the adhesive does not come out at the portion where the core material 2c is not present.

As described above, in the adhesive application method of this embodiment, since the adhesive is supplied from the adhesive supply means 20 to the nozzle 14, the supply amount of the adhesive can be easily adjusted to an appropriate amount. , Can be applied with a constant amount of adhesive.

Therefore, the adhesive strength between the frame 3 and the face material 5 is stabilized, so that the quality of the wood panel 1 can be stabilized and the cost can be reduced because the adhesive is not used excessively. In addition, too much adhesive is applied to the core material 2a,
The adhesive does not drip from 2b.

Then, by applying the adhesive from the nozzle 14, it is possible to apply the adhesive with a constant width so that the adhesive is not applied to the side edges of the cores 2a, 2b, so the cores 2a, 2b
The adhesive does not drip from the side edges of the.

Further, the limit switch 15a which is the core material detecting means 15
Automatically confirms the presence of the core materials 2a and 2b, and the adhesive is supplied to the nozzle 14 by the adhesive supply device 20, so that the adhesive application device 10 of this embodiment can be easily unmanned. In addition, the adhesive does not come out of the nozzle 14 in the place where the core materials 2a and 2b are not formed.

From the above, the side surface of the frame body 3 and the adhesive application device 10 are not contaminated by the adhesive, so that the equipment can be kept in a clean state without the trouble of peeling off the stuck adhesive. it can.

Further, according to the adhesive application method of this embodiment, the adhesive is applied from the nozzle 14 without forcibly passing between the rollers as in the conventional adhesive application device 10 described above. The frame 3 is not damaged.

[Effects of the Invention] As described in detail above, according to the adhesive applying device for manufacturing a wood panel of the present invention, the core material detecting means is provided in front of the nozzle, and after the frame is placed on the work feeder. The nozzle is moved forward, the adhesive is supplied to the nozzle based on the detection signal from the core detecting means, and the nozzle is moved and the adhesive is applied to the core, so that the adhesive is stably supplied to the nozzle. Then, it can be applied to the frame.

Therefore, the adhesive strength between the frame and the face material is stable, and the quality of the wood panel can be stabilized. Further, by applying the adhesive too much, unnecessary adhesive is not consumed, so that the cost can be reduced.

Further, by using the nozzle, the adhesive can be applied with a constant width without applying it to the side edge portion of the core material.

Moreover, since the adhesive can be automatically applied only to the portion where the core is present by the core detecting means, the equipment can be easily unmanned.

From the above, it is possible to prevent the adhesive from dripping from the surface of the core material because the adhesive is not applied too much, the side edge portion of the core material is not applied, and the adhesive is not applied to the portion without the core material. Therefore, the side surface of the frame and the equipment are not polluted.

Furthermore, unless the lever type limit switch, which is the core material detecting means and is attached to the position in front of the nozzle, comes into contact with the core material first and the lever cannot wait, the adhesive may be applied to the core material. Since it is not present, the application of the adhesive can be ensured and the unnecessary application of the adhesive can be completely prevented.

Also, since the lever type limit switch is small,
The nozzles can be mounted close to each other, and the presence or absence of the core material can be simultaneously confirmed at multiple points. Therefore, it is easy to apply the adhesive using a large number of nozzles.

Further, each of the horizontal application section and the vertical application section has a work feeder, a gate arm, a nozzle, a lever-type limit switch, and an adhesive supply means. Therefore, if the horizontal coating section and the vertical coating section are provided at different positions, the horizontal coating section and the vertical coating section can be checked for the presence / absence of the core material by a large number of lever type limit switches. In the horizontal application section, the adhesive is applied to the upper surface of the horizontal core of one frame body, and at the same time, in the vertical application section, the vertical direction of the other frame body sent from the horizontal application section is also applied. It is possible to apply an adhesive on the upper surface of the core material in the direction. That is,
With the use of the coating device of the present invention, the bonding work can be performed in a flow-type manner with a single coating device, and the efficiency of the bonding work is excellent.

Further, when the adhesive is applied to the frame, no strong force is applied to the frame, so that the frame is not damaged.

[Brief description of drawings]

1 to 4 are drawings showing an embodiment of the present invention. FIG. 1 is a perspective view of an adhesive applying device for manufacturing a wood panel, and FIG. 2 is attached to a rack and pinion mechanism. FIG. 3 is a side view of the nozzle and the core material detecting means, FIG. 3 is a front view of the nozzle and the core material detecting means attached to the rack and pinion mechanism, FIG. 4 is a schematic view of the adhesive supply means, and FIG. 5 is a frame. FIG. 6 is a perspective view of the body, and FIG. 6 is a perspective view in which a part of the wood panel is cut away. 1 ... Wood panel, 2 ... Core material, 2a ... Core material, 2b ... Core material, 3 ... Frame body, 3a ... Frame body, 5 ... Surface material, 11 ... Work feeder 12 ... Orbit, 13 ...... Arm 14 ...... Nozzle, 15 ...... Core material detection means 20 ...... Adhesive supply means.

Claims (1)

(57) [Claims] 1. An adhesive application device for applying an adhesive to an upper surface of a frame body in which core materials are assembled in a grid pattern by using an adhesive application nozzle movable along the longitudinal direction of the core material. It consists of a horizontal application section that applies adhesive to the horizontal core of the body and a vertical application section that applies adhesive to the vertical core of the frame.
Each of the horizontal direction coating section and the vertical direction coating section serves as a work table when the frame body is placed and moved and the adhesive is applied, and the work feeder advances on both sides of the work feeder. A gate-shaped arm whose both ends are guided by a track provided along the direction and which can move above the work feeder, and a plurality of adhesives which are attached to the gate-shaped arm and apply an adhesive to a core material constituting the frame body. Nozzle, a lever type limit switch attached to a position in front of the nozzle with respect to the traveling direction of the arm for checking the presence or absence of the core material of the frame, and the lever type limit switch based on a detection signal from the lever type limit switch. An adhesive applying device for manufacturing a wood panel, comprising: an adhesive supplying means for sending an adhesive to the nozzle.